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CVE-2017-6347 Details

Description

The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel before 4.10.1 has incorrect expectations about skb data layout, which allows local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32	CVE	PatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1427984	CVE	Issue TrackingPatchThird Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32	CVE	PatchThird Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.1	CVE	PatchRelease NotesThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/28/5	CVE	Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/96487	CVE	Third Party AdvisoryVDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32	[email protected]	PatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1427984	[email protected]	Issue TrackingPatchThird Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32	[email protected]	PatchThird Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.1	[email protected]	PatchRelease NotesThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/28/5	[email protected]	Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/96487	[email protected]	Third Party AdvisoryVDB Entry

see all 12 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	[email protected]

Affected Products

Product	Versions
linux linux kernel	>= 4.0, < 4.4.52 >= 4.5, < 4.9.13 >= 4.10, < 4.10.1
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 10, 2023	Modified Analysis	[email protected]
Mar 3, 2017	CVE Modified	[email protected]
Mar 2, 2017	Initial Analysis	[email protected]